What Credit Score Do You Need for a Mortgage?

If you have been told you need a specific credit score to get a mortgage, we have some clarifying news: in the UK, no such number exists. There is no official minimum credit score for a mortgage, and the score you check on Experian, ClearScore or Credit Karma is not the number a lender uses to approve or decline you.

That is not a technicality; it changes how you should prepare. The UK has three credit reference agencies, each with its own scale and its own idea of what counts as poor, fair or good. A number that looks alarming on one scale can sit in a respectable band on another, and when you apply, the lender ignores all three consumer scores and runs your raw credit report through its own internal scorecard instead.

In this guide we explain how the three agencies compare, what lenders actually look at, and what to do if your score is lower than you would like. We publish this as information only; we are not a broker or lender, and for advice on your own situation you should speak to an FCA regulated mortgage broker.

The UK credit system is built on three independent credit reference agencies: Experian, Equifax and TransUnion. Each collects data from lenders, utility companies, the electoral roll and public records such as county court judgments. Because not every company reports to every agency, the three files about you are similar but rarely identical.

On top of that, each agency summarises your file with its own scoring model on its own scale. Experian scores from 0 to 999, Equifax from 0 to 1,000, and TransUnion from 0 to 710. A score of 600 is therefore meaningless without knowing which agency produced it: on Experian it sits in the Poor band, while on TransUnion it sits near the top of Fair, within touching distance of Good.

Free checking services add another layer of branding. ClearScore shows your Equifax score, Credit Karma shows your TransUnion score, and MoneySavingExpert's Credit Club draws on Experian data. If two apps show you wildly different numbers, that is the explanation, not an error.

The table below maps each agency's published consumer bands side by side. The boundaries are set by the agencies themselves and they review them from time to time, so treat the edges as close approximations rather than laws of nature.

Here is the part the credit score industry rarely leads with: mortgage lenders do not see your Experian, Equifax or TransUnion consumer score. When you apply, the lender pulls your underlying credit report from one or more agencies and feeds the raw data into its own internal scoring model, built around the borrowers it wants and the losses it can tolerate.

Those internal scorecards weigh things the consumer score also tracks, such as missed payments, defaults, CCJs, credit utilisation and your time on the electoral roll. But they blend in factors the consumer score never touches: your income and its stability, your deposit, the loan to value you are asking for, your existing commitments and dependants, and the lender's own appetite for risk that month.

This explains two situations that confuse a lot of applicants. Someone with a Good consumer score can be declined because their affordability is stretched or their deposit is thin. And someone with a Poor consumer score can be approved because a specialist lender's scorecard tolerates a three year old default that the consumer algorithm still punishes.

Each lender therefore draws its own line. A high street bank may decline a file that a specialist adverse credit lender prices and accepts the same week. There is no national pass mark, only dozens of private ones.

Even though lenders use their own models, your consumer scores remain a useful weather report, built from the same report data lenders read. A strong band usually signals a clean file; a weak band signals issues worth investigating before you apply.

As a rough orientation: scores in the Good or Excellent bands on any agency, meaning roughly 881 plus on Experian, 671 plus on Equifax or 604 plus on TransUnion, suggest most mainstream lenders will at least consider you, subject to affordability and deposit. Fair band scores often still pass high street scorecards, particularly with a deposit of 10 percent or more. Poor and Very Poor bands point towards specialist lenders, larger deposits and manual underwriting.

What matters more than the number is what sits behind it. A Fair score caused by a thin credit history is a very different application from one caused by a default last year. Lenders read the report, not the headline.

No UK lender publishes a minimum Experian, Equifax or TransUnion score, because none of them use those scores. What lenders publish instead are criteria: how many defaults or CCJs they accept, how recent and how large those can be, whether the items must be satisfied, and how they treat IVAs, debt management plans and historic bankruptcy.

In practice the floor is set by criteria, not score. A mainstream bank might decline anyone with a default in the last three years; a specialist might accept defaults over 12 months old if the deposit is 15 percent or more. The task, ideally with a broker doing the matching, is to find lenders whose criteria your file already passes.

That is why even very low scores rarely mean a permanent no. We cover what is realistic at specific levels in our band guides, including scores of 500, 550, 580, 600 and 650, each of which maps to a different mix of lenders and deposit expectations.

The heaviest hitters are fairly consistent across all three agencies. In descending order of typical damage:

Usually, yes, provided the rest of the application carries its weight. The UK has a developed specialist lending market, including names such as Kensington, Pepper Money, Aldermore, Precise and Bluestone, built specifically for borrowers high street scorecards decline. These lenders underwrite manually: a human reads your file and your explanation rather than an algorithm scoring it in isolation.

The trade offs are predictable. Expect higher interest rates than a clean credit borrower would be offered, a larger deposit requirement, typically 10 to 25 percent depending on the severity and age of your issues, and more documentation. Many borrowers use a specialist deal as a bridge: two or three years of clean payments later, they remortgage to a mainstream lender at a better rate.

The age of your credit issues does most of the talking. A satisfied default from four years ago is a footnote to most specialists; the same default registered four months ago shrinks your options to a handful of lenders and pushes the deposit requirement up.

Score improvement before a mortgage application is less about hacks and more about removing the things lender scorecards penalise. These steps help across all three agencies and, more importantly, across internal models:

Be sceptical of anything promising a 700 score in 30 days. Quick administrative fixes, such as electoral roll registration, error corrections and paying down card balances, can produce a visible lift within one or two reporting cycles, roughly four to ten weeks.

Structural recovery is slower because it is driven by time. Missed payments weigh less as they age, defaults and CCJs hurt less after their first and second birthdays, and all fall off your report after six years. Recovery from genuine adverse credit usually means meaningful band movement over 12 to 24 months of clean conduct, not weeks.

For mortgage purposes you rarely need a perfect score, only to pass a specific lender's criteria on the day you apply, and criteria thresholds, such as a default turning one year old, often arrive sooner than a pretty number does.

Start by pulling all three of your credit reports, because you cannot fix what you have not seen. Then take ten minutes with our eligibility checker, which asks about your credit events, deposit and income and gives you an honest read on which kind of lender your profile points to. If your issues are recent, our timeline planner maps when each one stops blocking you, so you can decide whether to apply now or wait for a cheaper window.

When you are ready to act, speak to an FCA regulated mortgage broker with whole of market access, ideally one who handles adverse credit routinely. A broker can match your file to lender criteria without firing speculative applications that add hard searches to your report. We provide information to help you walk into that conversation prepared; the regulated advice itself needs to come from them.